What does the DRG weight primarily reflect?

• A. Patient age.
• B. Hospital location.
• C. Relative resource use required for care.
• D. Insurance type.

Answer: (C)

DRG weight reflects how resource-intensive a given diagnosis-related group is, capturing the relative amount of hospital resources—labor, supplies, and facilities—expected to be used to treat patients in that DRG compared with a baseline case. This weight scales the payment rate: a higher weight means higher expected costs for that encounter. It comes from historical cost data and adjustments for case mix, focusing on resource use rather than patient age, hospital location, or payer type. While those factors can influence total payment through other adjustments, the weight itself is about relative resource use.